<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        @font-face {
            font-family: 'iconfont';
            src: url('./font/iconfont.woff2?t=1621590934268') format('woff2'),
                url('./font/iconfont.woff?t=1621590934268') format('woff'),
                url('./font/iconfont.ttf?t=1621590934268') format('truetype');
        }

        @keyframes xin {
            0% {}

            20% {
                transform: scale(5);
            }
            40%{
                transform: scale(4);
            }
            60%{
                transform: scale(3);
            }
            80%{
                transform: scale(2);
            }
            100%{}
        }

        div {
            width: 20px;
            height: 20px;
            margin: 50px auto;
            font-family: 'iconfont';
            color: red;
            animation: xin 2s linear infinite;
        }
    </style>
</head>

<body>
    <div>&#xe603;</div>
    <div>&#xe603;</div>
    <div>&#xe603;</div>
</body>

</html>